Multiwavelength lasing in the random distributed feedback fiber laser is demonstrated by employing an all fiber Lyot filter. Stable multiwavelength generation is obtained, with each line exhibiting subnanometer line-widths. A flat power distribution over multiple lines is obtained, which indicates that the power between lines is redistributed in nonlinear mixing processes. The multiwavelength generation is observed both in first and second Stokes waves.
Bibliographical note© 2014 Optical Society of America
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Authors thank Mr. N. Tarasov and Dr. A. El-Taher for valuable inputs & the support of the ERC, EPSRC, Grant of Ministry of Education and Science of the Russian Federation (agreement No. 14.B25.31.0003)